Livecell combines elements of generative composition using cellular automata (CA) and stochastic processes with real-time score generation, under real-time control from user input. The CA graphical user interface enables interactive control through visual and auditory feedback whilst real-time score generation allows for the immediate realisation of the musical output by a string quartet. The tripartite structure of the system comprises the CA graphical user interface, the data musification engine and the score generator.